Home / 481,534,920.12-664,522,094.76-261,519,920.76

Finding the Fourth Proportional to 481,534,920.12, 664,522,094.76 and 261,519,920.76

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Solution

The fourth proportional to 481,534,920.12, 664,522,094.76 and 261,519,920.76 is: 360,899,611.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,534,920.12 : 664,522,094.76 = 261,519,920.76 : x
  2. Step 2: Convert to fraction form
    481,534,920.12/664,522,094.76 = 261,519,920.76/x
  3. Step 3: Cross multiply
    481,534,920.12x = 664,522,094.76 × 261,519,920.76
  4. Step 4: Simplify right side
    481,534,920.12x = 173,785,765,564,904,416
  5. Step 5: Solve for x
    x = 173,785,765,564,904,416/481,534,920.12
  6. Step 6: Final answer
    x = 360,899,611.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.